# CVE-2026-63339: IXP Manager has authenticated non-administrator privilege escalation

Status: published. Published: 2026-10-30. Updated: 2026-11-05.

IXP Manager is a full-stack web application for managing Internet Exchange Points. Prior to version 7.3.0, an authenticated, non-administrative user can elevate their privileges to administrator status. Restricting administrative functions reduces exposure but is not a complete fix. This issue is fixed in version 7.3.0.

## Remediation

- fix: IXP Manager: GitHub reports patched versions 7.3.0. Check the advisory for the affected release branch. (source: GitHub GHSA-f5xv-q6fj-hfrc) — https://github.com/inex/IXP-Manager/security/advisories/GHSA-f5xv-q6fj-hfrc

## Affected products and versions

- inex / IXP-Manager: < 7.3.0 (affected). Source: CNA: GitHub_M
-  / IXP Manager (IXP Manager): <7.3.0 (affected, GitHub advisory range). Source: GitHub GHSA-f5xv-q6fj-hfrc

## Severity and prioritization

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: CNA: GitHub_M

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: NVD: security-advisories@github.com

- CISA KEV: No listing in collected sources

- EPSS: 0.27% as of 2026-11-04; percentile 18.99%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-20, CWE-269

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/inex/IXP-Manager/security/advisories/GHSA-f5xv-q6fj-hfrc (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/inex/IXP-Manager/releases/tag/v7.3.0 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/inex/IXP-Manager/releases/tag/v7.3.0 (security-advisories@github.com)

- https://github.com/inex/IXP-Manager/security/advisories/GHSA-f5xv-q6fj-hfrc (security-advisories@github.com)

- https://github.com/inex/IXP-Manager/security/advisories/GHSA-f5xv-q6fj-hfrc (GitHub Security Advisories; advisory)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-63339; retrieved 2026-11-05; source updated 2026-11-05

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-63339; retrieved 2026-11-03; source updated 2026-11-02

- GitHub Security Advisories: https://github.com/inex/IXP-Manager/security/advisories/GHSA-f5xv-q6fj-hfrc; retrieved 2026-11-04; source updated 2026-07-16

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-63339; retrieved 2026-11-05; source updated Not reported

Revision: 4825b6c59f95c26349037ca4f44840eebab0aa7cfd00a2bfd459a62bfa8ad8c6

Canonical: https://y2.dev/cve/CVE-2026-63339

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.